Avior (Epsilon Carinae)

Artistic rendering of the Avior binary
system (Epsilon Carinae).

Avior (Epsilon Carinae) is the third brightest star in the constellation Carina.
Avior is a spectroscopic binary consisting of
a main sequence B star and a giant K
star, separated by just 0.02". There is some evidence that the components
eclipse each other, producing a slight drop in brightness every 2.2 years;
if so, this suggests a separation distance of about 4 astronomical units (AU) – less than
the distance of Jupiter from the Sun, but
too far apart for mass transfer to take place.